Compilare: main.cpp: In function 'int main()': main.cpp:54:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query_struct>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for(; j<cluster[i].size() && cluster[i][j].dr<=i*d; j++) | ~^~~~~~~~~~~~~~~~~~ main.cpp:79:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query_struct>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 79 | for(; j<cluster[i].size(); j++) | ~^~~~~~~~~~~~~~~~~~ main.cpp:77:17: warning: unused variable 'a' [-Wunused-variable] 77 | int a,b; | ^